jtag/drivers/OpenULINK/src/main.c

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// SPDX-License-Identifier: GPL-2.0-or-later
 
/***************************************************************************
 *   Copyright (C) 2011 by Martin Schmoelzer                               *
 *   <martin.schmoelzer@student.tuwien.ac.at>                              *
 ***************************************************************************/
 
#include "main.h"
 
#include "io.h"
#include "usb.h"
#include "protocol.h"
 
extern void sudav_isr(void)    __interrupt SUDAV_ISR;
extern void sof_isr(void)      __interrupt;
extern void sutok_isr(void)    __interrupt;
extern void suspend_isr(void)  __interrupt;
extern void usbreset_isr(void) __interrupt;
extern void ibn_isr(void)      __interrupt;
extern void ep0in_isr(void)    __interrupt;
extern void ep0out_isr(void)   __interrupt;
extern void ep1in_isr(void)    __interrupt;
extern void ep1out_isr(void)   __interrupt;
extern void ep2in_isr(void)    __interrupt;
extern void ep2out_isr(void)   __interrupt;
extern void ep3in_isr(void)    __interrupt;
extern void ep3out_isr(void)   __interrupt;
extern void ep4in_isr(void)    __interrupt;
extern void ep4out_isr(void)   __interrupt;
extern void ep5in_isr(void)    __interrupt;
extern void ep5out_isr(void)   __interrupt;
extern void ep6in_isr(void)    __interrupt;
extern void ep6out_isr(void)   __interrupt;
extern void ep7in_isr(void)    __interrupt;
extern void ep7out_isr(void)   __interrupt;
 
void io_init(void)
{
    /* PORTxCFG register bits select alternate functions (1 == alternate function,
     *                                                    0 == standard I/O)
     * OEx register bits turn on/off output buffer (1 == output, 0 == input)
     * OUTx register bits determine pin state of output
     * PINx register bits reflect pin state (high == 1, low == 0) */
 
    /* PORT A */
    PORTACFG = PIN_OE;
    OEA = PIN_U_OE | PIN_OE | PIN_RUN_LED | PIN_COM_LED;
    OUTA = PIN_RUN_LED | PIN_COM_LED;
 
    /* PORT B */
    PORTBCFG = 0x00;
    OEB = PIN_TDI | PIN_TMS | PIN_TCK | PIN_TRST | PIN_BRKIN | PIN_RESET
        | PIN_OCDSE;
 
    /* TRST and RESET signals are low-active but inverted by hardware, so we clear
     * these signals here! */
    OUTB = 0x00;
 
    /* PORT C */
    PORTCCFG = PIN_WR;
    OEC = PIN_TXD0 | PIN_WR;
    OUTC = 0x00;
}
 
int main(void)
{
    io_init();
    usb_init();
 
    /* Enable Interrupts */
    EA = 1;
 
    /* Begin executing command(s). This function never returns. */
    command_loop();
 
    /* Never reached, but SDCC complains about missing return statement */
    return 0;
}